Going Green/Tattle Tail

The Chipmunks and Chipettes try to reduce their carbon footprint when Jeanette signs them up for a Green Living competition. / Alvin is so taken with a girl at school, that he agrees to look after her talking Mina bird. But when Alvin says something damaging, he worries the bird will repeat it to the girl and must find a way to keep the bird from blabbing.